elopment from organic dust in space? 7. Discuss protoplasm. 8.
What was the probable growth of the North American continent? 9. What
is the nature of the fossils in the earliest layers of stratified
rock? 10. Describe the life of each of the three periods of the
Palaeozoic era. 11. Do the same for the Mesozoic era. 12. What was the
effect upon life of the development of seasons and of climates? 13.
What physical characteristics of the earth helped in the development
of new animal forms in the Cenozoic era? 14. What has been the ascent
of man?

Chapter VII. 1. Illustrate the asexual method of reproduction. 2.
Trace the two-parent method of reproduction upward from the simplest
forms. 3. What has been the development of the milk glands? 4. How
does the prolonged care of the young by the mother indicate the higher
development of the animal?

Chapter VIII. 1. Describe the earliest known ancestor of the horse? 2.
What changes took place in the second stage of development? 3. What is
the form by the middle of the Tertiary period? 4. What was the size of
the late Tertiary horse, and how was the grinding power of the teeth
increased? 5. How was the early Quaternary horse adapted for speed and
for eating? 6. How is the extermination of the horse in North and
South America accounted for, and how was he introduced again?

Chapter IX. 1. How extensive has the belief in evolution become since
Darwin's day? 2. How does the theory of Natural Selection fail in
accounting for Variation; how did Darwin try to amend his original
theory; and what is Weissmann's belief. 3. What second objection has
been brought against the theory of Natural Selection, and what have
been the contributions of Wagner, Jordan, and Romanes to the
discussion? 4. What is the third objection to Darwinism, and what is
the bearing upon it of the theory of Orthogenesis? 5. What is the
American and French tendency toward the belief that use is the cause
of the persisting of organs? 6. How did DeVries discover the
principle of mutation, and how does it apply to the discussion of
evolution?

Chapter X. 1. What was the cause of the passing of the civilization of
Athens, of Judea, of Sparta? 2. What promise of uniform development is
evident to-day, and what are some of the hindrances? 3. What has been
the changing emphasis in the evolution of man? 4. How is man the
arbiter of his own destiny? 5. What is the task of the eugenist; how
is he trying to accomplish it, and